than is compatible with economical working. To ren- will hear, in one direction, that he must use a multitubular best form to resist pressure—rather than a flat-sided box. der useful this hitherto large proportion of wasted heat is the boiler for economy, although be sees that it is open to tne… … are driven by a single Lelanche' cell of small air. It is at once seen that the comparison FlO. A size, the current from which is transmitted between the temperature in the fire box and by the standard clock in the gallery. The motor consists A very large additional heating surface is thus added to…
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